LTM8033 Ultralow Noise EMC 36V , IN 3A DC/DC Module Regulator FEATURES DESCRIPTION n Complete Step-Down Switch Mode Power Supply The LTM 8033 is an electromagnetic compatible (EMC) n Wide Input Voltage Range: 3.6V to 36V 36V, 3A DC/DC Module buck converter designed to n 3A Output Current meet the radiated emissions requirements of EN55022. n 0.8V to 24V Output Voltage Conducted emission requirements can be met by adding n EN55022 Class B Compliant standard filter components. Included in the package are the n Current Share Multiple LTM8033 Regulators for switching controller, power switches, inductor, filters and More Than 3A Output all support components. Operating over an input voltage n Selectable Switching Frequency: 200kHz to 2.4MHz range of 3.6V to 36V, the LTM8033 supports an output n Current Mode Control voltage range of 0.8V to 24V, and a switching frequency n SnPb or RoHS Compliant Finish range of 200kHz to 2.4MHz, each set by a single resistor. n Programmable Soft-Start Only the bulk input and output filter capacitors are needed n Compact Package (11.25mm 15mm 4.32mm) to finish the design. Surface Mount LGA and (11.25mm 15mm The LTM8033 is packaged in a compact (11.25mm 15mm 4.92mm) BGA Packages 4.32mm) overmolded land grid array (LGA) and ball grid array (BGA) package suitable for automated assembly by standard surface mount equipment. The LTM8033 is avail- APPLICATIONS able with SnPb (BGA) or RoHS compliant terminal finish. n Automotive Battery Regulation L, LT, LTC, LTM, Linear Technology, the Linear logo, Module and Burst Mode are registered n trademarks of Linear Technology Corporation. All other trademarks are the property of their Power for Portable Products respective owners. n Distributed Supply Regulation n Industrial Supplies n Wall Transformer Regulation TYPICAL APPLICATION Ultralow Noise 12V/3A DC/DC Module Regulator EMI Performance 80 LTM8033 70 V * V IN OUT V V IN OUT 20V TO 36V 12V 60 3A 2.2F RUN/SS AUX 50 40 FIN BIAS 30 1F SHARE PGOOD 20 47F RT SYNC GND ADJ 10 0 30 226.2 422.4 618.6 814.8 1010 41.2k 34.8k 128.1 324.3 520.5 716.7 912.9 8033 TA01b FREQUENCY (MHz) f = 850kHz 8033 TA01a * RUNNING VOLTAGE RANGE. PLEASE REFER TO THE APPLICATIONS INFORMATION SECTION FOR START-UP DETAILS. 8033fb 1 For more information www.linear.com/LTM8033LTM8033 ABSOLUTE MAXIMUM RATINGS (Note 1) V , FIN, RUN/SS Voltage ........................................36V BIAS .........................................................................25V IN ADJ, RT, SHARE Voltage ............................................6V Maximum Junction Temperature (Note 2) .......... 125C V , AUX ................................................................25V Solder Temperature ............................................. 245C OUT PGOOD, SYNC ..........................................................30V PIN CONFIGURATION TOP VIEW TOP VIEW SYNC SYNC GND GND 8 8 RUN/SS RUN/SS PGOOD PGOOD ADJ ADJ BANK 3 FIN BANK 3 FIN 7 7 SHARE RT SHARE RT 6 6 BANK 2 BANK 2 5 5 GND GND 4 BIAS 4 BIAS 3 AUX 3 AUX BANK 1 BANK 4 BANK 1 BANK 4 2 2 V V V V OUT IN OUT IN 1 1 A B C D E F G H J K L A B C D E F G H J K L BGA PACKAGE LGA PACKAGE 76-LEAD (15mm 11.25mm 4.92mm) 76-LEAD (15mm 11.25mm 4.32mm) T = 125C, = 15.4C/W, = 5.2C/W, = 9.8C/W, = 16.7C/W T = 125C, = 15.4C/W, = 5.2C/W, = 9.8C/W, = 16.7C/W JMAX JA JCbottom JB JCtop JMAX JA JCbottom JB JCtop VALUES DERIVED FROM A 4 LAYER 6.35cm 6.35cm PCB VALUES DERIVED FROM A 4 LAYER 6.35cm 6.35cm PCB WEIGHT = 2.2g WEIGHT = 2.2g ORDER INFORMATION PART MARKING* PACKAGE MSL TEMPERATURE RANGE PART NUMBER PAD OR BALL FINISH DEVICE FINISH CODE TYPE RATING (Note 2) LTM8033EV PBF Au (RoHS) LTM8033V e4 LGA 3 40C to 125C LTM8033IV PBF Au (RoHS) LTM8033V e4 LGA 3 40C to 125C LTM8033MPV PBF Au (RoHS) LTM8033V e4 LGA 3 55C to 125C LTM8033EY PBF SAC305 (RoHS) LTM8033Y e1 BGA 3 40C to 125C LTM8033IY PBF SAC305 (RoHS) LTM8033Y e1 BGA 3 40C to 125C LTM8033IY SnPb (63/67) LTM8033Y e0 BGA 3 40C to 125C LTM8033MPY PBF SAC305 (RoHS) LTM8033Y e1 BGA 3 55C to 125C LTM8033MPY SnPb (63/67) LTM8033Y e0 BGA 3 55C to 125C Consult Marketing for parts specified with wider operating temperature Recommended LGA and BGA PCB Assembly and Manufacturing ranges. *Device temperature grade is indicated by a label on the shipping Procedures: www.linear.com/umodule/pcbassembly container. Pad or ball finish code is per IPC/JEDEC J-STD-609. Terminal Finish Part Marking: LGA and BGA Package and T ray Drawings: www.linear.com/leadfree www.linear.com/packaging 8033fb 2 For more information www.linear.com/LTM8033